how can I get a call back when the process in the windows tasklist is killed using java?how can I monitor the event? i want to realize that if process is killed then start auto?
great thanks！
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I've heard that you can use WMI for this and perhaps one of the libraries that provide a Java-COM bridge such as JACOB. – Hovercraft Full Of Eels Apr 22 '12 at 04:26
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@HovercraftFullOfEels thank you for your advice.Is there any sample? – Mickel Lee Apr 22 '12 at 06:38
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By "windows tasklist" do you mean Windows OS processes? If so, please add a "windows" tag to the question. This is more about monitoring processes on Windows than it is about Java. – Old Pro Apr 22 '12 at 06:39
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@OldPro yes,I mean windows os processes,thank you for your advice – Mickel Lee Apr 22 '12 at 06:41
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This process is a your java process? – dash1e Apr 22 '12 at 08:21
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@dash1e not java process.the windows os processes in window Task Manager – Mickel Lee Apr 22 '12 at 09:06
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I have not done this myself, but I've heard that by using VMI, you would listen to events which *may* be a more elegant solution than polling as suggested by @dash1e. – Hovercraft Full Of Eels Apr 22 '12 at 13:22
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Ok you can allocate a thread that every N seconds call the external process
tasklist /v
maybe with a filter on your Window Title or program name.
To launch tasklist from java you can do
Process p = Runtime.getRuntime().exec("tasklist /v");
BufferedReader in = new BufferedReader(new InputStreamReader(p.getInputStream()));
and then read the BufferedReader and check for your process.
Remember to terminate every time the process in the right way.
dash1e
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great thanks! how to terminate the process? now everytime it produce a tasklist.exe window os process. – Mickel Lee Apr 22 '12 at 10:21
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There are many questions on this topic. For example read this question: http://stackoverflow.com/questions/5483830/process-waitfor-never-returns – dash1e Apr 22 '12 at 10:38
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Read all this article: http://www.javaworld.com/javaworld/jw-12-2000/jw-1229-traps.html – dash1e Apr 22 '12 at 11:32